4256977631 has 6 divisors (see below), whose sum is σ = 4280172096. Its totient is φ = 4233792800.

The previous prime is 4256977603. The next prime is 4256977679. The reversal of 4256977631 is 1367796524.

It is not a de Polignac number, because 4256977631 - 2¹⁸ = 4256715487 is a prime.

It is a super-2 number, since 2×4256977631² = 36243717101668744322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4256977631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256917631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 899351 + ... + 904071.

It is an arithmetic number, because the mean of its divisors is an integer number (713362016).

Almost surely, 2^4256977631 is an apocalyptic number.

4256977631 is a deficient number, since it is larger than the sum of its proper divisors (23194465).

4256977631 is an frugal number, since it uses more digits than its factorization.

4256977631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9633 (or 4912 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 50.

The square root of 4256977631 is about 65245.5180912835. The cubic root of 4256977631 is about 1620.6918793123.

The spelling of 4256977631 in words is "four billion, two hundred fifty-six million, nine hundred seventy-seven thousand, six hundred thirty-one".